From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Mon, 29 Nov 2010 14:53:34 +0000 (-0300)
Subject: [media] v4l: videobuf2: add DMA scatter/gather allocator
X-Git-Tag: v2.6.39-rc1~86^2~430
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5ba3f757f0592ca001266b4a6214d0332349909c;p=pandora-kernel.git

[media] v4l: videobuf2: add DMA scatter/gather allocator

Add an implementation of DMA scatter/gather allocator and handling
routines for videobuf2.

For mmap operation mode it is implemented on top of
alloc_page + sg_set_page/_free_page.

For userptr operation mode it is implemented on top of
get_user_pages + sg_set_page/put_page.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
CC: Pawel Osciak <pawel@osciak.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

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